Svantek SVAN 977A - 11.3.2 Setting up the scale of spectrum plot - Display Scale

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SVAN 977A User Manual
You can shift the Y-axis in the spectrum view
with the <Shift> and ▲ / ▼ keys pressed
together.
<Sh/▼>
You can change the cursor position with the
◄ / ► key. You can jump to the first or last
spectrum line with <Shift>.and ◄ / ► keys
pressed together.
The frequency and appropriate value are
presented in the line below the plot.
► ...
You can zoom in/out the frequency scale at
the cursor position with the ◄ / ► key pressed
together with <Shift>.
<Sh/►>
11.3.2 Setting up the scale of spectrum plot - Display Scale
The Display Scale screen allows to define
the result units (absolute or logarithmic),
adjust scale of plots and toggle the grid.
<ENT>
Scale of results presentation
The Scale parameter defines results units:
linear (Lin – m/s
2
, m/s etc.) or logarithmic
(Log - dB).
For sound measurements, the Scale position
is not active. All results are always presented
in dB.
The Log option means that the graphical
presentation is given in the logarithmic scale
and the measurement results are expressed
in decibels (the result is related to the values
set in the Reference Levels screen (path:
<Menu> / Auxiliary Setup / Reference Levels).
=>
=>
Note: In Vibration modes, results can be presented in the Logarithmic (dB) or Linear (for example,
m/s
2
) units. It depends on the Scale parameter value. For example, 10 m/s
2
can be presented also
as 140 dB.